Container cap



Nov. 17, 1953 1 T. A. NYGAARD CONTAINER CAR Filed May 10, 1951 INVENTOR.75/?5/67'77/Q Wygaa rd ATTORNEYS Patented Nov. 17, 1953 UNITED STATESPATENT OFFICE CONTAINER CAP Torstein A. Nygaard, San Pedro, Calif.Application May 10, 1951, Serial No. 225,506

1 Claim.

vided in the center so that when the end of a" bottle is struck, such aswith a hammer or other tool, or the end of the bottle is forced againsta rigid object, the extended central portion of the cap pressesdownwardly in the end of the bottle or container whereby the crimpedouter edge is sprung outwardly, releasing the cap from the bottle orcontainer.

The purpose of this invention is to provide an improved bottle cap thatcan be removed without a bottle opener or other tool and which, may alsobe opened with the conventional bottle opener.

In the conventional type of crimped bottle cap or container cover it isnecessary to pry the cap from the end of the bottle and, in numerousinstances, it is desired to open bottles of this type when a bottleopener is not at hand. With this thought in mind this inventioncontemplates an improved form of bottle cap that may be opened with theconventional bottle opener and that may also be opened by striking theend of the cap with a rigid object.

The object of this invention is, therefore, to provide an improvedmethod for forming a bottle cap whereby the cap may be removed withouttools or other devices.

Another object of the invention is to provide a bottle or container capthat may be removed by striking the end of the cap or by striking anobject with the cap that may be used on bottles or containers withoutchanging the bottles or containers.

A further object of the invention is to provide an improved bottle capthat is adapted to be opened without a bottle opener or other tool,which is of a simple and economical construction.

With these and other objects and advantages in view the inventionembodies an improved bottle cap formed with a disc having theconventional gripping flange and also having an extended cylindricalshaped section in the center that is adapted to be driven into the endof the bottle.

Other features and advantages of the invention will appear from thefollowing description taken in connection with the drawings wherein:

Figure 1 is an end elevational view showing the improved bottle cap withparts of the bottle on which the cap is positioned broken away,

Figure 2 is a side elevational view of the improved bottle cap also withparts of the bottle broken away.

Figure 3 is a vertical section through the upper end of a bottle showingthe improved cap thereon illustrating a reinforcing band positionedaround the extended section of the cap.

Figure 4 is a similar View showing the band and center section of thecap driven into the end of a bottle whereby the crimped flange and outerportion of the cap is forced upwardly.

Figure 5 is a View similar to that shown in Figure 3 illustrating amodification wherein the upper edge of the band around the center of thecap is provided with a recess for receiving the bead on the upper edgeof the central portion of the cap.

Figure 6 is a similar view showing a further modification wherein theintermediate part of the cap is folded to provide reinforcing in thecenter section thereof.

Referring now to the drawings wherein like reference characters denotecorresponding parts the improved bottle or container cap of thisinvention includes a disc l0 having a depending flange l l with acrimped lower edge l2, and having an upwardly extended cylindricalsection 13 extended from the intermediate part of the disc [0 and aclosure web or wall [4 extended across the upper end of the cylindricalsection l3.

In the design illustrated in Figures 1, 2 and 3 the cylindrical sectionI3 is provided with a reinforcing band [5 and a cork washer I6 ispositioned against the inner surface of the flat section or disc l0.

With the parts arranged in this manner the cap is crimped over theconventional bead I! on the end of a bottle or other container l8, asillustrated in Figure 3 whereby the bottle is sealed, and when it isdesired to remove the cap the outer end I4 is struck with a hammer orother tool, or by holding the bottle in the hand the end of the cap isstruck against a surface or the like whereby the extended end of the capis driven into the bottle as shown in Figure 4.

In this movement the outer edge of the disc section I0 is forcedupwardly and the depending flange II is forced outwardly with the,crimped edge I2 freed from the outer surface of the bead ll of thebottle. With the parts in this position the cap is readily removed fromthe end of the bottle.

In the design illustrated in Figure 5 a disc 19, provided with adepending flange 20 having a crimped lower edge 2| is provided with acylindrical section 22 the upper end of which is closed with a web 23.In this design the peripheral edge of the web 23 is provided with a bead24 that extends into a recess 25 in a reinforcing band 26, similar tothe band l5. This cap is also provided with a cork washer, as indicatedby the numeral 21. By striking the outer end of the center section ofthe cap the end of the cap is driven into the end of the bottle similarto the cap shown in Figure 4.

In the design illustrated in Figure 6 the cap is formed with a flatsection 28, similar to the disc I and this is provided with a dependingflange 29 having a crimped lower edge 30. In this cap the center sectionis formed by extending a tubular section outwardly forming a cylindricalweb 3|, the end of which is folded at the point 32 and from the point 32the web is extended downwardly against the inner surface of the web 3:providing a section 33 which extends downwardly to the point 34 where anannular fold is provided from which the section extends upwardlyproviding'a cylindrical wall 35 and this wall is provided with a closureweb 38. This cap is also provided with a cork lining washer 31, similarto the washer 15. This cap is also adapted to be struck for openingwherein the center section is driven downwardly into the end of thebottle or container, similar to corresponding parts of the capillustrated in Figure 4.

A cap formed in this manner is crimped on the end of a bottle orcontainer with conventional means and when it is desired to remove thecap from the bottle or container it is only necessary to strike the endof the cap in order to pry the crimped flange free so that cap is freefrom the container and may readily be removed therefrom.

It will be understood that other modifications may be made in the designand arrangement of .4 the parts without departing from the spirit of theinvention.

What is claimed is:

In a cap for a container neck having an annular bead and an annulargroove contiguous to said head, a disk having a depending annularflange, a portion of the lower edge of said flange being crimpedinwardly for engaging said groove, a cylindrical section extendingupwardly from said disk, a closure wall extending across the upper endof said cylindrical section, said cylindrical section and flange beingarranged concentrically, and said cylindrical section being of lessdiameter than the neck of the container to which it is applied, areinforcing band surrounding said cylindrical section, and a washerinterposed between said disk and the neck of the container, said bandand cylindrical section being mounted for telescoping movement into theopen neck of the container when force is applied to .said closure wallwhereby a portion of said disk assumes a frustro-conical form to causethe crimped portion of said flange to move out of its engagement withsaid groove.

TORSTEIN A. NYGAARD.

References Cited in the file of this patent UNITED STATES PATENTS

